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Interpret trigger and grip values

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This commit is contained in:
David Rowe 2017-02-17 12:42:10 +13:00
parent 7b36669d80
commit 5236f123c1
1 changed files with 80 additions and 17 deletions
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97
scripts/system/fingerPaint.js
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@ -60,39 +60,108 @@
function handController(name) {
// Translates controller data into application events.
var handName = name,
triggerPressed, // Callback.
triggerPressing, // ""
triggerReleased, // ""
gripPressed, // ""
isEnabled = false;
isEnabled = false,
triggerPressedCallback,
triggerPressingCallback,
triggerReleasedCallback,
gripPressedCallback,
triggerValue = 0.0,
isTriggerPressed = false,
TRIGGER_SMOOTH_RATIO = 0.1,
TRIGGER_OFF = 0.05,
TRIGGER_ON = 0.1,
TRIGGER_START_WIDTH = 0.15,
TRIGGER_FINISH_WIDTH = 1.0,
TRIGGER_RANGE_WIDTH = TRIGGER_FINISH_WIDTH - TRIGGER_START_WIDTH,
START_LINE_WIDTH = 0.005,
FINISH_LINE_WIDTH = 0.010,
RANGE_LINE_WIDTH = FINISH_LINE_WIDTH - START_LINE_WIDTH,
gripValue = 0.0,
isGripPressed = false,
GRIP_SMOOTH_RATIO = 0.1,
GRIP_OFF = 0.05,
GRIP_ON = 0.1;
function setEnabled(enabled) {
isEnabled = enabled;
}
function onTriggerPress(value) {
var wasTriggerPressed,
fingerTipPosition,
lineWidth;
if (!isEnabled) {
return;
}
triggerValue = triggerValue * TRIGGER_SMOOTH_RATIO + value * (1.0 - TRIGGER_SMOOTH_RATIO);
wasTriggerPressed = isTriggerPressed;
if (isTriggerPressed) {
isTriggerPressed = triggerValue > TRIGGER_OFF;
} else {
isTriggerPressed = triggerValue > TRIGGER_ON;
}
if (wasTriggerPressed || isTriggerPressed) {
fingerTipPosition = MyAvatar.getJointPosition(handName === "left" ? "LeftHandIndex3" : "RightHandIndex3");
if (triggerValue < TRIGGER_START_WIDTH) {
lineWidth = START_LINE_WIDTH;
} else {
lineWidth = START_LINE_WIDTH
+ (triggerValue - TRIGGER_START_WIDTH) / TRIGGER_RANGE_WIDTH * RANGE_LINE_WIDTH;
}
if (!wasTriggerPressed && isTriggerPressed) {
triggerPressedCallback(fingerTipPosition, lineWidth);
} else if (wasTriggerPressed && isTriggerPressed) {
triggerPressingCallback(fingerTipPosition, lineWidth);
} else {
triggerReleasedCallback(fingerTipPosition, lineWidth);
}
}
}
function onGripPress(value) {
var fingerTipPosition;
if (!isEnabled) {
return;
}
gripValue = gripValue * GRIP_SMOOTH_RATIO + value * (1.0 - GRIP_SMOOTH_RATIO);
if (isGripPressed) {
isGripPressed = gripValue > GRIP_OFF;
} else {
isGripPressed = gripValue > GRIP_ON;
if (isGripPressed) {
fingerTipPosition = MyAvatar.getJointPosition(handName === "left" ? "LeftHandIndex3" : "RightHandIndex3");
gripPressedCallback(fingerTipPosition);
}
}
}
function setUp(onTriggerPressed, onTriggerPressing, onTriggerReleased, onGripPressed) {
triggerPressedCallback = onTriggerPressed;
triggerPressingCallback = onTriggerPressing;
triggerReleasedCallback = onTriggerReleased;
gripPressedCallback = onGripPressed;
}
function tearDown() {
// Nothing to do.
}
return {
setEnabled: setEnabled,
onTriggerPress: onTriggerPress,
onGripPress: onGripPress,
triggerPressed: triggerPressed,
triggerPressing: triggerPressing,
triggerReleased: triggerReleased,
gripPressed: gripPressed,
setUp: setUp,
tearDown: tearDown
};
}
@ -165,15 +234,9 @@
// Connect handController outputs to paintBrush objects.
leftBrush = paintBrush("left");
leftHand.triggerPressed = leftBrush.startLine;
leftHand.triggerPressing = leftBrush.drawLine;
leftHand.trigerRelease = leftBrush.finishLine;
leftHand.gripPressed = leftBrush.eraseLine;
leftHand.setUp(leftBrush.startLine, leftBrush.drawLine, leftBrush.finishLine, leftBrush.eraseClosestLine);
rightBrush = paintBrush("right");
rightHand.triggerPressed = rightBrush.startLine;
rightHand.triggerPressing = rightBrush.drawLine;
rightHand.trigerRelease = rightBrush.finishLine;
rightHand.gripPressed = rightBrush.eraseLine;
rightHand.setUp(rightBrush.startLine, rightBrush.drawLine, rightBrush.finishLine, rightBrush.eraseClosestLine);
// Messages channels for enabling/disabling other scripts' functions.
Messages.subscribe(HIFI_POINT_INDEX_MESSAGE_CHANNEL);